Optical drives can hold “super-imaginary” data

The optical drive, called AIE-DDPR, is made from a completely new material.

AIE-DDPR film uses a combination of special photosensitive molecules that can absorb optical data at the nano level, then encode it with high-tech dual laser beams.

The new type of optical disc is considered a revolution in data storage. Photo: Newsweek

Thanks to the extremely transparent AIE-DDPR film design, multiple layers can be overwritten onto an optical disc without worrying about damaging the data. This creates a 3D box for digital information, exponentially increasing the disc's storage capacity.

Combined with the use of a 54-nanometer laser, the team eventually created an optical disc with a 3D skeleton of multiple layers of data, which can hold 1 petabyte of information, corresponding to 125,000 gigabytes of data.

This is a huge amount of data compared to the amount stored in the most advanced flash memory (USD) or hard disk drives (HHD).

Scientists describe the same petabyte of information stored on an AIE-DDPR optical drive as equivalent to a number of 2-meter-high HHD drives stacked on top of each other, or more than 220,000 conventional DVDs.

"Imagine if we encoded the same amount of data onto a Blu-ray disc, we would need about 10,000 blank discs," the researchers told Newsweek.

Source: https://nld.com.vn/o-dia-quang-co-the-chua-du-lieu-sieu-tuong-196240226142647697.htm